TST install service_identity package in tests to prevent warnings
TST install service_identity package in tests to prevent warnings

Also, Twisted version is bumped for Python 3.x tests, just in case.

service_identity is not added to Scrapy requirements because Scrapy
supports older Twisted / PyOpenSSL versions which don't use it.

hwsyy/scrapy,Djlavoy/scrapy,mlyundin/scrapy,w495/scrapy,amboxer21/scrapy,kalessin/scrapy,ArturGaspar/scrapy,scrapy/scrapy,nfunato/scrapy,dangra/scrapy,dgillis/scrapy,ssh-odoo/scrapy,Ryezhang/scrapy,curita/scrapy,liyy7/scrapy,dangra/scrapy,hansenDise/scrapy,WilliamKinaan/scrapy,fqul/scrapy,snowdream1314/scrapy,songfj/scrapy,smaty1/scrapy,jiezhu2007/scrapy,finfish/scrapy,jdemaeyer/scrapy,mgedmin/scrapy,Digenis/scrapy,bmess/scrapy,shaform/scrapy,scrapy/scrapy,Ryezhang/scrapy,scorphus/scrapy,Geeglee/scrapy,rolando-contrib/scrapy,ArturGaspar/scrapy,agusc/scrapy,ENjOyAbLE1991/scrapy,elacuesta/scrapy,webmakin/scrapy,darkrho/scrapy-scrapy,hyrole/scrapy,olafdietsche/scrapy,agreen/scrapy,github-account-because-they-want-it/scrapy,rootAvish/scrapy,kimimj/scrapy,Chenmxs/scrapy,fontenele/scrapy,yusofm/scrapy,zorojean/scrapy,wzyuliyang/scrapy,pombredanne/scrapy,Bourneer/scrapy,darkrho/scrapy-scrapy,haiiiiiyun/scrapy,tntC4stl3/scrapy,taito/scrapy,snowdream1314/scrapy,barraponto/scrapy,GregoryVigoTorres/scrapy,hyrole/scrapy,ylcolala/scrapy,heamon7/scrapy,Slater-Victoroff/scrapy,Zephor5/scrapy,yidongliu/scrapy,elijah513/scrapy,zackslash/scrapy,Allianzcortex/scrapy,foromer4/scrapy,dacjames/scrapy,mlyundin/scrapy,cyberplant/scrapy,hyrole/scrapy,nguyenhongson03/scrapy,jc0n/scrapy,famorted/scrapy,barraponto/scrapy,umrashrf/scrapy,Djlavoy/scrapy,eLRuLL/scrapy,URXtech/scrapy,wujuguang/scrapy,rolando/scrapy,dacjames/scrapy,irwinlove/scrapy,kazitanvirahsan/scrapy,johnardavies/scrapy,hectoruelo/scrapy,wujuguang/scrapy,Adai0808/scrapy-1,songfj/scrapy,nfunato/scrapy,Slater-Victoroff/scrapy,pombredanne/scrapy,OpenWhere/scrapy,jc0n/scrapy,famorted/scrapy,cursesun/scrapy,tagatac/scrapy,nikgr95/scrapy,farhan0581/scrapy,nowopen/scrapy,Parlin-Galanodel/scrapy,GregoryVigoTorres/scrapy,amboxer21/scrapy,OpenWhere/scrapy,wenyu1001/scrapy,cyrixhero/scrapy,profjrr/scrapy,zhangtao11/scrapy,fqul/scrapy,TarasRudnyk/scrapy,z-fork/scrapy,pombredanne/scrapy,Cnfc19932/scrapy,nfunato/scrapy,foromer4/scrapy,Allianzcortex/scrapy,Chenmxs/scrapy,zjuwangg/scrapy,raphaelfruneaux/scrapy,Preetwinder/scrapy,kimimj/scrapy,eLRuLL/scrapy,hbwzhsh/scrapy,YeelerG/scrapy,yidongliu/scrapy,zackslash/scrapy,olorz/scrapy,eLRuLL/scrapy,profjrr/scrapy,tliber/scrapy,wenyu1001/scrapy,irwinlove/scrapy,cursesun/scrapy,yarikoptic/scrapy,jc0n/scrapy,redapple/scrapy,scorphus/scrapy,raphaelfruneaux/scrapy,finfish/scrapy,dacjames/scrapy,barraponto/scrapy,fafaman/scrapy,starrify/scrapy,nikgr95/scrapy,z-fork/scrapy,heamon7/scrapy,finfish/scrapy,olorz/scrapy,Digenis/scrapy,agusc/scrapy,haiiiiiyun/scrapy,zorojean/scrapy,KublaikhanGeek/scrapy,GregoryVigoTorres/scrapy,lacrazyboy/scrapy,ssteo/scrapy,fpy171/scrapy,AaronTao1990/scrapy,YeelerG/scrapy,yarikoptic/scrapy,olafdietsche/scrapy,haiiiiiyun/scrapy,aivarsk/scrapy,pawelmhm/scrapy,redapple/scrapy,coderabhishek/scrapy,Adai0808/scrapy-1,IvanGavran/scrapy,ylcolala/scrapy,hectoruelo/scrapy,scorphus/scrapy,stenskjaer/scrapy,nguyenhongson03/scrapy,irwinlove/scrapy,tliber/scrapy,cyrixhero/scrapy,elacuesta/scrapy,smaty1/scrapy,codebhendi/scrapy,1yvT0s/scrapy,coderabhishek/scrapy,eliasdorneles/scrapy,Cnfc19932/scrapy,cleydson/scrapy,livepy/scrapy,Bourneer/scrapy,OpenWhere/scrapy,carlosp420/scrapy,pfctdayelise/scrapy,lacrazyboy/scrapy,arush0311/scrapy,AaronTao1990/scrapy,fontenele/scrapy,Geeglee/scrapy,Lucifer-Kim/scrapy,CodeJuan/scrapy,songfj/scrapy,github-account-because-they-want-it/scrapy,johnardavies/scrapy,godfreyy/scrapy,xiao26/scrapy,rootAvish/scrapy,Djlavoy/scrapy,codebhendi/scrapy,dangra/scrapy,webmakin/scrapy,raphaelfruneaux/scrapy,csalazar/scrapy,IvanGavran/scrapy,dracony/scrapy,webmakin/scrapy,crasker/scrapy,kashyap32/scrapy,stenskjaer/scrapy,cyberplant/scrapy,heamon7/scrapy,olafdietsche/scrapy,1yvT0s/scrapy,TarasRudnyk/scrapy,xiao26/scrapy,CodeJuan/scrapy,cursesun/scrapy,Slater-Victoroff/scrapy,godfreyy/scrapy,JacobStevenR/scrapy,Bourneer/scrapy,YeelerG/scrapy,cleydson/scrapy,zhangtao11/scrapy,Timeship/scrapy,coderabhishek/scrapy,dracony/scrapy,kazitanvirahsan/scrapy,farhan0581/scrapy,rolando-contrib/scrapy,scrapy/scrapy,pfctdayelise/scrapy,hbwzhsh/scrapy,jeffreyjinfeng/scrapy,tliber/scrapy,aivarsk/scrapy,pawelmhm/scrapy,hansenDise/scrapy,xiao26/scrapy,Lucifer-Kim/scrapy,moraesnicol/scrapy,rahulsharma1991/scrapy,zjuwangg/scrapy,smaty1/scrapy,eliasdorneles/scrapy,CodeJuan/scrapy,cyberplant/scrapy,shaform/scrapy,w495/scrapy,godfreyy/scrapy,Timeship/scrapy,pranjalpatil/scrapy,URXtech/scrapy,rklabs/scrapy,nguyenhongson03/scrapy,moraesnicol/scrapy,bmess/scrapy,rahulsharma1991/scrapy,yusofm/scrapy,huoxudong125/scrapy,cyrixhero/scrapy,fpy171/scrapy,darkrho/scrapy-scrapy,Zephor5/scrapy,yarikoptic/scrapy,starrify/scrapy,eliasdorneles/scrapy,jeffreyjinfeng/scrapy,wangjun/scrapy,arush0311/scrapy,rklabs/scrapy,wangjun/scrapy,JacobStevenR/scrapy,zorojean/scrapy,mgedmin/scrapy,1yvT0s/scrapy,famorted/scrapy,kmike/scrapy,zhangtao11/scrapy,pranjalpatil/scrapy,jdemaeyer/scrapy,legendtkl/scrapy,starrify/scrapy,kashyap32/scrapy,fafaman/scrapy,dracony/scrapy,kmike/scrapy,WilliamKinaan/scrapy,fafaman/scrapy,URXtech/scrapy,Lucifer-Kim/scrapy,rootAvish/scrapy,rahulsharma1991/scrapy,jiezhu2007/scrapy,jdemaeyer/scrapy,foromer4/scrapy,pablohoffman/scrapy,hansenDise/scrapy,livepy/scrapy,agreen/scrapy,avtoritet/scrapy,kalessin/scrapy,rolando/scrapy,dgillis/scrapy,hectoruelo/scrapy,zjuwangg/scrapy,legendtkl/scrapy,kashyap32/scrapy,Geeglee/scrapy,agusc/scrapy,rklabs/scrapy,Parlin-Galanodel/scrapy,profjrr/scrapy,kalessin/scrapy,Adai0808/scrapy-1,mgedmin/scrapy,csalazar/scrapy,ENjOyAbLE1991/scrapy,arush0311/scrapy,jiezhu2007/scrapy,nowopen/scrapy,hwsyy/scrapy,fontenele/scrapy,huoxudong125/scrapy,WilliamKinaan/scrapy,huoxudong125/scrapy,yidongliu/scrapy,jeffreyjinfeng/scrapy,snowdream1314/scrapy,aivarsk/scrapy,umrashrf/scrapy,tntC4stl3/scrapy,livepy/scrapy,rolando-contrib/scrapy,hbwzhsh/scrapy,Preetwinder/scrapy,johnardavies/scrapy,nowopen/scrapy,kimimj/scrapy,curita/scrapy,pablohoffman/scrapy,legendtkl/scrapy,amboxer21/scrapy,lacrazyboy/scrapy,KublaikhanGeek/scrapy,elijah513/scrapy,Parlin-Galanodel/scrapy,pranjalpatil/scrapy,codebhendi/scrapy,liyy7/scrapy,rolando/scrapy,olorz/scrapy,mlyundin/scrapy,Timeship/scrapy,curita/scrapy,tntC4stl3/scrapy,wzyuliyang/scrapy,carlosp420/scrapy,AaronTao1990/scrapy,Digenis/scrapy,ENjOyAbLE1991/scrapy,ArturGaspar/scrapy,kmike/scrapy,farhan0581/scrapy,tagatac/scrapy,Cnfc19932/scrapy,kazitanvirahsan/scrapy,moraesnicol/scrapy,redapple/scrapy,Preetwinder/scrapy,fqul/scrapy,Ryezhang/scrapy,KublaikhanGeek/scrapy,fpy171/scrapy,ssteo/scrapy,w495/scrapy,ssh-odoo/scrapy,dgillis/scrapy,crasker/scrapy,taito/scrapy,cleydson/scrapy,z-fork/scrapy,pawelmhm/scrapy,avtoritet/scrapy,JacobStevenR/scrapy,TarasRudnyk/scrapy,wenyu1001/scrapy,avtoritet/scrapy,hwsyy/scrapy,ssh-odoo/scrapy,Allianzcortex/scrapy,wujuguang/scrapy,IvanGavran/scrapy,yusofm/scrapy,shaform/scrapy,umrashrf/scrapy,ssteo/scrapy,pablohoffman/scrapy,Zephor5/scrapy,bmess/scrapy,crasker/scrapy,agreen/scrapy,tagatac/scrapy,github-account-because-they-want-it/scrapy,wangjun/scrapy,Chenmxs/scrapy,carlosp420/scrapy,stenskjaer/scrapy,zackslash/scrapy,pfctdayelise/scrapy,ylcolala/scrapy,wzyuliyang/scrapy,liyy7/scrapy,csalazar/scrapy,elijah513/scrapy,elacuesta/scrapy,nikgr95/scrapy,taito/scrapy